<div class="sidebar-sticky">
    <ul class="nav flex-column">
        <li class="nav-item">
            <a class="nav-link active" href="#">
                <span data-feather="users"></span>
                人员管理
            </a>
        </li>
        <li class="nav-item">
            <a class="nav-link" href="#">
                <span data-feather="file"></span>
                角色管理
            </a>
        </li>
        <li class="nav-item">
            <a class="nav-link" href="#">
                <span data-feather="shopping-cart"></span>
                权限管理
            </a>
        </li>
        <li class="nav-item" toggle="0">
            <a class="nav-link" href="javascript:;">
                <span data-feather="users"></span>
                模块一
                <span class="nav-link-arrow float-right"  data-feather="chevron-right"></span>
            </a>
            <div class="subnav-block" style="display: none    ">
                <ul class="nav-subnav">
                    <li class="nav-item">
                        <a class="nav-link" href="#">
                            Page1
                        </a>
                    </li>
                    <li class="nav-item">
                        <a class="nav-link" href="#">
                            Page2
                        </a>
                    </li>
                    <li class="nav-item">
                        <a class="nav-link" href="#">
                            Page3
                        </a>
                    </li>
                </ul>
            </div>
        </li>
        <li class="nav-item">
            <a class="nav-link" href="#">
                <span data-feather="bar-chart-2"></span>
                Reports
            </a>
        </li>
        <li class="nav-item">
            <a class="nav-link" href="#">
                <span data-feather="layers"></span>
                Integrations
            </a>
        </li>
    </ul>

</div>